What is streamlining? How does a parachute work? In this first programme Gerd Sommerhoff answers these and other questions about the properties of the air around us.
For Schools
First shown in September 1961
(to 10.22)
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What is streamlining? How does a parachute work? In this first programme Gerd Sommerhoff answers these and other questions about the properties of the air around us.
For Schools
First shown in September 1961
(to 10.22)